Vacuum Aspiration :

A powerful suction tube is inserted through the cervix and into the uterus. The fetus is torn apart by the force of the suction and sucked into a collection bottle, along with the placenta and amniotic sac. Since the doctor cannot actually see what he is doing, several possible complications can occur, including infection (if any portion of the fetus or placenta remains in the womb), uterine perforation (if the tube punctures the womb) and cervical laceration.